Mercruiser 502 hp, 3L, although I'm not getting rid of mine

Mercruiser 502 hp, Specs are duration of 212 @ . The engine accessories (alt,water pump, carb Aug 10, 2020 · Mercruiser Thunderbolt ignition systems. It just seems to me that the#4 cylinder is the problem child and chances are it will have low compression. If you have questions, please start a new thread. Thunderbolt V was an improvement on an already exceptionally Aug 7, 2015 · It is running a 350 MPI Magnum Mercruiser, with a Bravo 3. Oct 19, 2005 · Re: Who Manufactures Mercruiser Engines??? Mercruiser does purchase the engines from the major manufacturers. Sep 11, 2008 · The fuel injected Mercruiser is prefered over a carbed version right? What year did they start putting fuel injection on the Mercuiser? My list of boats to buy is down to two now. 7L HP Rating ?? The pre Vortec 5. The engine accessories (alt,water pump, carb Nov 15, 2011 · Re: Mercruiser 898 (GM 305) V8 - Good, Bad, Fast, Slow Engine? Truth Wanted! 2 years ago i had the exact same package in almost the exact same boat (see my signature). Would stall at idle too which was a real pain at the dock. Mar 11, 2014 · Re: mercruiser 3. 7 with 2 barrel carb were around 210 - 220 hp and 250 - 260 with 4 barrel. 7 put out 250 - 260hp with a 2 barrel. 3 mercruiser have? I have the 4. Mar 11, 2014 · Re: mercruiser 3. Dec 4, 2009 · Re: Mercruiser stiff steering and wandering Jay D, there are different types of steering systems, what worked for the original poster, may not work for your boat. If you want to make a performance engine, go for a Small Block Chevy, not a 470. 440 lift. Aug 4, 2004 · Re: Mercruiser 5. 050 and . I built a new engine using Comp Cams 260h marine cam. Both around 400 hours. Think of it like this, here is a list of specs, can you build the engines to these specs, and how much per engine? Long blocks are identical to what would be in a truck, except for the core plugs. 3L, although I'm not getting rid of mine. I have a family of 5 and it pulls two tubers easily, I dont even crank it a WOT to get going and its up on plane in about 6-7 secs. Kneeboarding a 100lb kid has not been a probelm either. Mercruiser introduced the Thunderbolt IV onto their engines in 1982, alongside the introduction of the 1-R drives. 7 Mercuiser and the other an '98 5. Mar 11, 2018 · The Mercruiser/cummins 120 DTI runs a closed pressurised cooling system with a heat exchanger, a bigger turbo and an intercooler. The TB-IV system was used until the introduction of TB-V mid-way through 1996. Mercruiser does not adapt these engines. Depending on the boat/hull, the 5. It would go off under a variety of conditions and all the fluids, temp, and oil pressure were ok. Dealer diagnosed a intermittent fault with the shift interrupt switch, replaced it and the problem went away. 0 is a small motor. 3 TKS, 190 hp. Those Vortec heads flow real nice and allow higher compression without detonation. Look at the link below, you should find what you are looking for that will fit your boat. No increase in top speed, but I got a somewhat noticeable performance increase out of the hole. Aug 7, 2015 · It is running a 350 MPI Magnum Mercruiser, with a Bravo 3. I'm fairly handy mechanically, so im trying to diagnose / fix this myself. Normally manufacturers de-tune engines for marine use so while this engine has great power-to-weight and simply amazing fuel economy, it spits the dummy rather expensively on entering an over propped or over boosted Sep 7, 2010 · Re: Mercruiser 2 beeps/minute alarm diagnosis Sherlock I had alarm issues similar to yours awhile back. stating operating range from 1800-4900rpm. That limits the hp over the MPI. 0MPI. it is great for a light cruise, however if your looking for performance, I suspect you may hit 35mph in your hull. I did a 2bbl to 4bbl swap - an Edelbrock performer intake and a Holley 4160 carb. 0L or 4. Sep 14, 2011 · Re: 1986 Mercruiser 3. Launching and getting Mar 31, 2011 · Re: How much power does 4. As far as i see it, there are a few critical components to the power steering: 1) A freely moving helm steering mechanism. 7 L Carb The carb models use low-profile intakes with 2brl carbs. Aug 27, 2008 · Re: Mercruiser HP difference 5. One has '95 5. As for Volvo fudging the numbers. I was just wondering how that compairs with Mercury's. 0 performance, pros and cons, what can I expect? the 3. 7 Liter / 170Hp Good or Bad Engine? Please Help!!!!! I might pass if there were a similar boat with a 3. The Vortec 5. Nov 15, 2011 · Re: Mercruiser 898 (GM 305) V8 - Good, Bad, Fast, Slow Engine? Truth Wanted! 2 years ago i had the exact same package in almost the exact same boat (see my signature). 0L MPI vs 5. MPI hp is slightly more than what you would get by a higher profile intake and 4brl carb. 0 Mercuiser. 7L carb may plane out quicker that the 5. There are maintainability and driveability benefits with MPI. 2) A freely moving and non binding steering cable from the helm down to the actuator. Aug 24, 2009 · Does anyone know the approximate cam specs for the cam Mercruiser used in its 260hp Chevy 350CID. Other designed-in potential problems others have mentioned. Oct 4, 2007 · Re: Rebuilding a Mercruiser 470 for performance? Trying to keep those engine together stock is a challange.


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